string/ngram_utils library

N-gram generator for strings — character and word n-grams (roadmap #405).

Functions

characterNgrams(String s, int n) List<String>
Returns character n-grams of s with length n. Overlapping windows; empty string or n < 1 returns empty list.
wordNgrams(String s, int n) List<List<String>>
Returns word n-grams of s with n words per gram. Words are split on whitespace; empty or n < 1 returns empty list.